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Snow covered home in winter

Emergency Heat

24/7 Available

Covington, WA • Heating Experts

Heating Systems & Furnace Services

Professional furnace installation, repair, and maintenance to keep your home warm and comfortable through every Washington winter.

Licensed & Insured
4.9 Star Rating
Same-Day Service
Call Now Free Estimate
15+ Years of Heating Expertise
2,500+ Furnaces Installed
4.9 Star Customer Rating
Same-Day Heating Repair
Licensed & Insured Technicians
100% Satisfaction Guaranteed
15+ Years of Heating Expertise
2,500+ Furnaces Installed
4.9 Star Customer Rating
Same-Day Heating Repair
Licensed & Insured Technicians
100% Satisfaction Guaranteed
Warm cozy living room interior
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Furnaces Installed

Our Heating Services

Complete Heating
Solutions for Your Home

From emergency furnace repairs to full system installations, Next Phase Heating & Cooling delivers reliable warmth to homes across King, Snohomish, and Pierce County. Our certified technicians diagnose issues fast and deliver lasting results.

Furnace Repair & Diagnostics

Fast, accurate troubleshooting with same-day repair service available 7 days a week.

New System Installation

Energy-efficient furnaces, boilers, and heat pumps sized perfectly for your home.

Preventive Maintenance

Annual tune-ups that extend equipment life and prevent costly breakdowns.

24/7 Emergency Service

Heating emergencies do not wait, and neither do we. Call anytime, day or night.

Schedule Service
Heating Solutions

Types of Heating
Systems We Service

From traditional furnaces to cutting-edge heat pumps, we install, repair, and maintain every type of heating system for Washington homes.

Gas furnace heating

Gas Furnaces

  • High-efficiency models up to 98% AFUE
  • Reliable forced-air heating
  • Cost-effective for WA winters
Electric furnace warm home

Electric Furnaces

  • No gas line required
  • Safe and clean operation
  • Lower upfront installation cost
Boiler system

Boilers

  • Even, consistent heat distribution
  • Quiet, dust-free operation
  • Long lifespan (20+ years)
Radiant floor heating cozy room

Radiant Heating

  • Luxurious underfloor warmth
  • Zero ductwork needed
  • Allergy-friendly, no blown air
Modern home with ductless system

Ductless Mini-Splits

  • Zone-by-zone temperature control
  • Heating and cooling in one unit
  • Perfect for additions & retrofits
Heat pump thermostat

Heat Pumps

  • Up to 300% energy efficient
  • Year-round heating & cooling
  • Eligible for WA state rebates
Warning Signs

6 Signs Your Furnace
Needs Attention

Catching problems early saves money and prevents emergency breakdowns. Watch for these common warning signs.

Strange Noises

Banging, squealing, or rattling sounds indicate worn parts, loose components, or ignition problems requiring immediate attention.

Uneven Heating

Hot and cold spots throughout your home signal ductwork issues, a failing blower motor, or an improperly sized system.

Rising Energy Bills

Unexplained increases in your heating costs suggest declining efficiency, dirty filters, or a system nearing end of life.

Frequent Cycling

If your furnace constantly turns on and off, it could mean a faulty thermostat, clogged filter, or overheating heat exchanger.

Yellow Pilot Light

A healthy flame is blue. A yellow or flickering flame may indicate a carbon monoxide hazard. Call us immediately.

System Age 15+ Years

Furnaces last 15-20 years. If yours is aging, replacement can cut energy bills by 30% or more with modern efficiency.

Noticing any of these signs? Do not wait for a complete breakdown.

Request Inspection
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Years Experience

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Furnaces Installed

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5-Star Reviews

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% Satisfaction

Cozy warm blanket interior

"Warmth is not a luxury,

it's a necessity."

Beautiful home exterior in winter

Washington winters average 37 days below freezing. Is your furnace ready?

Be Prepared

Don't Wait for the
First Freeze

The best time to service your heating system is before you need it. Our pre-season tune-up catches small issues before they become expensive emergencies.

Pre-Season Checklist

Inspect heat exchanger
Clean or replace filters
Test thermostat calibration
Lubricate moving parts
Check gas connections
Test safety controls
Inspect flue & venting
Measure airflow output
Book Your Tune-Up
Our Process

How We Install Your
New Heating System

A seamless, transparent process from consultation to completion. No surprises, just professional results.

Home assessment
01

Free Consultation

We assess your home, discuss your comfort needs, and recommend the best system for your budget and lifestyle.

Custom proposal
02

Custom Proposal

Receive a detailed, transparent quote with equipment options, financing, and available rebate information.

Professional installation
03

Expert Installation

Our certified team installs your system with precision, protecting your home and cleaning up completely.

Happy family warm home
04

Enjoy & Support

We walk you through your new system, register warranties, and provide ongoing support and maintenance.

Transparent Pricing

Heating Service
Packages

Straightforward pricing with no hidden fees. Every package includes our quality guarantee.

Heating maintenance tools

Tune-Up

Annual Maintenance

$89 /visit
  • 21-point system inspection
  • Filter replacement
  • Thermostat calibration
  • Safety control testing
  • Performance report
Book Now
New furnace installation

Installation

Full System Replacement

Custom /quote
  • Free in-home estimate
  • Premium equipment brands
  • Financing options available
  • 10-year parts & labor warranty
  • Rebate assistance included
Get Quote
Customer Reviews

What Our Heating
Customers Say

"Our furnace broke down on the coldest night of the year. Next Phase had a technician at our door within an hour and had us warm again by midnight. Incredible service."

MJ

Michael J.

Covington, WA

"They installed a new high-efficiency gas furnace and our heating bills dropped by nearly 40%. The team was professional, clean, and finished ahead of schedule."

ST

Sarah T.

Maple Valley, WA

"We had three companies quote us for a heat pump installation. Next Phase was the most thorough, honest, and competitive. Their work was flawless from start to finish."

DR

David R.

Kent, WA

"Annual tune-up customer for 3 years now. They always show up on time, explain everything clearly, and keep our older furnace running like new. Highly recommend!"

LP

Linda P.

Auburn, WA

"Replaced our 20-year-old boiler with a modern system. The difference in comfort is night and day. The house heats evenly now and the energy savings are real."

JW

James W.

Renton, WA

"Emergency call on a Sunday morning and they were here by noon. Diagnosed the problem quickly and had the part in their van. Fair pricing, great attitude. Five stars."

AK

Amanda K.

Bellevue, WA

FAQ

Common Heating
Questions

How often should I service my furnace?

We recommend annual furnace maintenance, ideally in early fall before the heating season begins. Regular service extends equipment life by 5-10 years, maintains manufacturer warranties, and can prevent up to 95% of common breakdowns.

How long does a furnace installation take?

A standard furnace replacement typically takes 4-8 hours and is completed in a single day. More complex installations involving ductwork modifications or system conversions may take 1-2 days. We always provide a timeline before starting work.

Should I repair or replace my furnace?

Consider replacement if your furnace is over 15 years old, repair costs exceed 50% of a new system, or your energy bills have steadily increased. We provide honest assessments and will never recommend replacement when a simple repair will do.

What AFUE rating should I look for?

AFUE (Annual Fuel Utilization Efficiency) measures how efficiently a furnace converts fuel to heat. We recommend 90% AFUE or higher for Washington homes. High-efficiency models reach 96-98% AFUE, meaning nearly all fuel becomes usable heat.

Do you offer financing for new heating systems?

Yes! We offer flexible financing options with approved credit, including low monthly payments and promotional interest rates. We also help you identify and apply for all available WA state and federal energy efficiency rebates and tax credits.

What brands of furnaces do you install?

We install and service all major brands including Lennox, Carrier, Trane, Rheem, Bryant, Goodman, and more. We select the best equipment for your home based on performance, reliability, and value, not brand partnerships.

Cozy fireplace warm home

Stay Warm
This Winter

Whether you need an emergency repair, a new installation, or simply want to make sure your furnace is winter-ready, Next Phase is here for you.

Licensed & Insured 24/7 Emergency Financing Available